Switch to upstream repo, change xonsh config

programs/xonsh/default.nix

@@ -1,15 +1,17 @@
 { config, pkgs, ... }:
-
+let rootPath = ./.; in
 {
-  programs.xonsh.enable = true;
-
-  programs.xonsh.interactiveShellInit = ''
-      cat ~/.cache/wal/sequences
-    '';
-
-    home.sessionVariables = {
-      PROMPT = "τ ";
-      RIGHT_PROMPT = "{YELLOW}{gitstatus: {} }{BLUE}{short_cwd}{DEFAULT}";
-      VI_MODE = 1;
+  home.packages = with pkgs; [
+    xonsh
+  ];
+  home.sessionVariables = {
+    PROMPT = "τ ";
+    RIGHT_PROMPT = "{YELLOW}{gitstatus: {} }{BLUE}{short_cwd}{DEFAULT}";
+    VI_MODE = 1;
   };
+  xdg.configFile."xonshrc" = {
+    source = rootPath + "/rc.xsh";
+    target = "xonsh/rc.xsh";
+  };
+
 }

programs/xonsh/rc.xsh

@@ -0,0 +1,7 @@
+#!/usr/bin/env xonsh
+
+if $XONSH_INTERACTIVE:
+  if '__HM_SESS_VARS_SOURCED' in ${...}:
+    del $__HM_SESS_VARS_SOURCED
+  source-bash "$HOME/.nix-profile/etc/profile.d/hm-session-vars.sh" --suppress-skip-message
+  cat "$HOME/.cache/wallust/sequences"